EP1570796A1 - Elément d'ancrage osseux et dispositif de stabilisation comprenant un tel élément d'ancrage osseux - Google Patents

Elément d'ancrage osseux et dispositif de stabilisation comprenant un tel élément d'ancrage osseux Download PDF

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Publication number
EP1570796A1
EP1570796A1 EP05004677A EP05004677A EP1570796A1 EP 1570796 A1 EP1570796 A1 EP 1570796A1 EP 05004677 A EP05004677 A EP 05004677A EP 05004677 A EP05004677 A EP 05004677A EP 1570796 A1 EP1570796 A1 EP 1570796A1
Authority
EP
European Patent Office
Prior art keywords
head part
bone anchoring
anchoring element
element according
bone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP05004677A
Other languages
German (de)
English (en)
Other versions
EP1570796B1 (fr
Inventor
Lutz Biedermann
Jürgen Harms
Wilfried Matthis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Biedermann Motech GmbH and Co KG
Original Assignee
Biedermann Motech GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Biedermann Motech GmbH and Co KG filed Critical Biedermann Motech GmbH and Co KG
Publication of EP1570796A1 publication Critical patent/EP1570796A1/fr
Application granted granted Critical
Publication of EP1570796B1 publication Critical patent/EP1570796B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7032—Screws or hooks with U-shaped head or back through which longitudinal rods pass
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7035—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7035—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
    • A61B17/7037—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other wherein pivoting is blocked when the rod is clamped
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7059—Cortical plates
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86—Pins or screws or threaded wires; nuts therefor
    • A61B17/8605—Heads, i.e. proximal ends projecting from bone

Definitions

  • the invention relates to a bone anchoring element for anchoring in a bone or vertebra and a stabilizer with such a bone anchoring element.
  • fixation and stabilization devices consisting of at least two anchored in the bone or vertebrae and bone screws connected via a plate or a rod consist.
  • fixation and stabilization devices consisting of at least two anchored in the bone or vertebrae and bone screws connected via a plate or a rod consist.
  • Such rigid systems do not allow any Movement of the relatively fixed bone parts or Whirl.
  • a dynamic stabilization desirable in which the bone parts to be stabilized or vertebrae a controlled limited movement can perform to each other.
  • a realization possibility for a dynamic stabilizer is in use a movable element instead of a bone anchoring elements connecting rigid rod, as for example in EP 0 669 109 B1 or in US 2003/0109880 A1 is described.
  • the problem can occur more frequently that a transmission of the resulting from the movement Moments on those anchored in the bone or vertebrae Shank of the anchoring elements takes place, due to the continuous cyclical partial load of the bone anchoring element for loosening the shaft in the surrounding bone material and thus can lead to loosening the anchorage.
  • a bone anchoring element and a stabilizing device for bones or vertebrae to provide with such a bone anchoring element, the or a controlled partial movement of the stabilized Bone parts or vertebrae with simultaneous high safety anchoring allowed and optimally positioned is.
  • the invention has the advantage that the bone anchoring element due to its elastic connection of the first and second head part axial forces in the direction of its shaft axis, Bending forces and torsional forces absorbs. This will be a limited movement of the bone by the restoring force or vertebra, where it is anchored, allowed and become the moments acting on the shaft during the movement reduced, allowing a release of the connection through permanent Cyclic partial loading of the anchoring is omitted.
  • the invention further has the advantage that a desired Rest angle position between the shaft and the receiving part adjustable as in a conventional polyaxial screw is.
  • the elastic properties of the bone anchoring element can be easily made by changing the manufacturing process Dimensions of first headboard, second headboard and elastic Pressure element and / or the material used for the elastic pressure element can be realized.
  • the bone anchoring element is with the known fasteners like Plates and rods usable.
  • a dynamic stabilizer with a desired movement limit by selecting bone anchoring elements with suitable ones elastic properties using conventional Plates or rods are provided.
  • a bone anchoring element according to FIGS. 1 and 2 shown first embodiment is as a polyaxial bone screw designed for connection to a rod 100.
  • the polyaxial bone screw has an anchoring in the bone Screw element 1 with a shaft 2 with a bone thread 3 and one with the shaft 2 in this embodiment integrally connected to the first head part 4.
  • the polyaxial bone screw has a sleeve-shaped second one Head part 10 for receiving the first head part 4 and a receiving part 40 for receiving the second head part 10, one on this acting second pressure element 50 and the rod 100, as well as a first and a second locking screw 60, 70 on.
  • the first head part 4 of the screw element 1 has adjacent to the shaft 2 a spherical segment-shaped section 5 with a Diameter larger than the shaft diameter.
  • a widened Edge 6 or collar provided, creating a circular surface 7 which is substantially smooth and in which coaxial with the shaft axis a recess 8 for engagement located with a screwing tool.
  • Fig.1 is a hexagonal Recess 8 shown for an Allen key.
  • the sleeve-shaped second head part 10 is spherical segment-shaped with a spherical outer surface 11 and two opposite flat ends 12, 13 formed. From the one end 12 extends a coaxial first bore 15 with a diameter, which is larger than the outer diameter of the widened Rands 6 of the screw element 1. Adjacent to the first Bore 15 extends a coaxial second bore 16th the diameter of which is smaller adjacent the second end 13 as the ball diameter of the first head part 4 but larger as the diameter of the shaft 2, so that this passed can be. The second bore 16 widens further starting from the second end 13 to the first bore 15th spherical with a spherical radius, which is dimensioned so that the second head part 4 bears against it. Adjacent to the first Bore 15, the diameter of the second bore is smaller than the spherical radius of the head part 4.
  • the screw member 1 is so in the second head part 10th inserted, that the shaft 2 by the end 13 adjacent to the bore 16 is passed and the spherical segment-shaped Section 5 of the first head part 4 in the second bore 16th of the second head part 10 is held.
  • the first pressure element 20th On the widened edge 6 of the first head part 4 formed surface 7 is an elastic first pressure element 20th arranged, which is preferably formed of an elastomer.
  • the first pressure element 20 has the shape of a disk circular cross-section and a predetermined thickness and has a coaxial bore 21, which pass through a with the screwing in the recess 8 of the widened Edge 6 formed surface 7 allows.
  • the outer diameter of the first pressure element 20 is selected so that it can be inserted into the first bore 15 of the second head part 10 is.
  • the bore provided a clearance 22, so that the Pressure element can escape with elastic deformation.
  • the mounting cap 30 On the side facing away from the edge 6 of the first head part 4 side of the first pressure element 20 is a rigid mounting cap 30 arranged.
  • the mounting cap 30 has the shape of a circular disc with a coaxial bore 31 on the allows a grasping with the above-mentioned screwing tool.
  • the outer diameter of the mounting cap 30 corresponds to a section 32 facing the first pressure element 20 Inner diameter of the first bore 15 in the second head part 10 or is so much smaller that an inserting and fixing e.g. with a press fit in the second head part 10 allows is.
  • the outer surface of the section 33 is formed so spherical that they in the inserted state of the mounting cap 30 a Continuation of the spherical outer surface 11 of the second head part 10 forms.
  • the thickness of the first pressure element 20 is chosen such that when the mounting cap 30 is inserted into the second head part is biased and put pressure on the the widened edge 6 of the first head part 4 surface formed 7 exerts, so that the first head part 4 against the second Bore 16 of the second head part 10 is pressed and the Screw member 1 elastically held in the second head part 10 is.
  • the storage of the first head part 4 in the second bore 16 by introducing a special Slip coating, a sliding foil or a sliding ring with regard to minimal between the spherical segment-shaped Section 5 and the second bore 16 acting frictional forces optimized.
  • the receiving part 40 is formed substantially cylindrical. Starting from its first end 41 is in the receiving part 40 a coaxial first bore 48 is provided, whose Diameter larger than the outer diameter of the second Headboard 10. Adjacent to the other end 49 of the receiving part 40 is a coaxial second bore 47 is provided, whose Diameter of the diameter of the first bore 48 against the second end 49 is tapered spherically. That's it second head part 10 held in the receiving part 40 and a pivotable predetermined angular range.
  • a recess 42 provided with a U-shaped cross section, the just dimensioned so large that the rod 100 can be inserted.
  • an internal thread 46 which with a corresponding external thread 61 of the between the legs 44, 45 to be screwed first Locking screw 60 cooperates.
  • the second pressure element 50 is essentially cylindrically symmetrical with an outer diameter, which is smaller than the inner diameter of the first bore 48, that the pressure element in the first bore 48 can be used is.
  • the second head part 10 facing end side 51 of the second pressure element 50 is concave spherical, wherein the radius is the radius of the spherical outer surface 11 of the second head part 10 and the fastening cap attached thereto 30 corresponds.
  • the second pressure element 50 On the second head part 10 facing away Side, the second pressure element 50 has a recess 52 having a U-shaped cross section, the bottom 53 a Radius slightly larger than the radius of the rod 100 and in which the rod 100 engages.
  • the second pressure element 50 further has a coaxial bore for reaching through with a screwing tool.
  • the first locking screw 60 has a bore 62 which is provided with an internal thread 63, with an external thread 71 of the second locking screw 70 cooperates. Furthermore has the locking screw 60 on its the pressure element 50 opposite side not shown recesses to engage with a screwing tool.
  • the second locking screw 70 has at its top one Recess 72 for engagement with a screwing on.
  • Recess 72 for an Allen wrench shown.
  • it is also another recess, such as. a Phillips, to engage with a screwing possible.
  • the rod 100 By tightening the second locking screw 70, the rod 100 pressed against the bottom 53 of the recess 52 and thus Pressure on the second pressure element 50 and thus on the second Head part 10 exerted to optimally fix the rest angle position to achieve.
  • the rod 100 is thereby through the second locking screw 70 and the base 53 in the U-shaped Recess 42 of the receiving part fixed.
  • the screw member 1 is first with the shaft. 2 passed through the bores 15, 16 in the second head part 10, so that the first head part 4 in the second bore 16 is held. Subsequently, the first pressure element 20 inserted into the second head part 10 and by inserting the mounting cap 30 in the second head part 10 against pressed the surface 7 of the first head part 4 and in this preloaded condition over the inserted mounting cap 30 held. Then this is screw 1 and second headboard 10 formed element introduced into the receiving part 40 and then the second pressure element 50 in the receiving part 40th used.
  • the screw member 1 is passed through through the coaxial bores of the second pressure element 50, the mounting cap 30 and the first pressure element 20 and engaging in the recess 8 of the screw member with a screwdriver in the bone or vertebra screwed. Then the rod is inserted, the Position of the receiving part 40 relative to the second head part 10 is adjusted. This position, the desired angle of repose position is, by the first locking screw 60, which presses on the second pressure element 50, prefixed.
  • the mounting cap 30 When prefixing the rest angle position, the mounting cap 30 by interaction of their spherical outer surface with the spherical recess of the end face 51 of the second Pressing element 50 is pressed against the first pressure element 20 and thus secured against loosening.
  • the rod 100 is then by screwing the second Locking screw 70 pressed against the bottom 53 and thereby fixed. At the same time by tightening the second locking screw 70 via the rod 100 on the second pressure element 50 and thus exerted pressure on the second head part 10, so that thus an additional fixation of the rest angle position is achieved.
  • FIGS. 3b and 3c each show a deflection this angle of repose position in different directions, where the arrow denotes the direction of deflection.
  • the first pressure member 20 in the rest angle position on a uniform thickness As shown in Fig. 3a, the first pressure member 20 in the rest angle position on a uniform thickness.
  • Fig. 3b is shown schematically that a deflection of the screw member This causes one side 22 of the printing element is compressed, whereas the opposite side 23 is relaxed.
  • the deformation of the elastic first pressure element 20 leads to building internal tensions in this, the exert a restoring force counteracting the deflection, so that the screw member 1 in the rest angle position is pushed back.
  • the size of the restoring force can on the one hand through the thickness of the first pressure element 20 are influenced, the the bias of the first pressure element 20 in the installed state certainly. Furthermore, the size of the repelling Force also by the choice of material for the first pressure element 20, with different elasticities and compressibilities are possible, and by the exact shaping of the first Pressure element 20 can be adjusted so that a desired Rigidity of the bone anchoring element against axial Forces, bending forces and torsional forces can be achieved.
  • the deflectability In the deflection from the rest angle position limits the Ratio of the diameter of the edge 6 of the screw element 1 to the diameter of the first bore 15 in the second Headboard 10 the deflectability. Due to different size ratios between the diameter of the rim 6 and the inner diameter the bore 15 can thus the deflectability be varied. For example, can by selecting screws 1 with different width edges 6, in a second headboard can be used with predetermined inner diameter of the bore 15 are, thus anchoring elements with different deflectability to be provided.
  • a particular advantage of this design of a bone anchoring element is the decoupling of the elastic deflection the screw element 1 of the adjustment of the rest angle position, resulting from the combination of the first headboard 4, second head part 10 and receiving part 40 is reached.
  • a stabilizing device comprises at least a bone anchoring element as described above in combination with a rod and a second bone anchoring element, this also preferably as described above is trained.
  • a bone anchoring element of the second embodiment which is shown in Fig. 4, is the bone anchoring element formed such that not attaching a Rod, but a plate is provided.
  • first screw element 1 first pressure element 20, mounting cap 30 and second Head part 10 of the structure of the first embodiment, therefore the same reference numerals are used for these components and a re-description is omitted.
  • the essential difference of the second embodiment over The first embodiment is that the receiving part is formed by the plate 200 to be fastened.
  • the plate 200 has a first bore 248 extending from a first side of the plate extends into the plate and their Diameter larger than the outer diameter of the second Head portion 10.
  • the first bore 248 has in the first Side of the plate facing area furthermore an internal thread 246 on. Adjacent to the other side 249 of the plate is coaxial with the first bore 248 and connected to this a second bore 247 is provided, the diameter of the Diameter of the first bore 248 against the second side 249th spherically rejuvenated.
  • the second head part 10 is in held the plate 200 and a predetermined angular range pivotable, as in the first embodiment.
  • the second pressure element 250 is substantially cylindrically symmetric with an outer diameter, which is smaller than the inner diameter of the first bore 248, so that the pressure element in the first bore 248 can be used.
  • the second head part 10 facing End face 251 of the second pressure element 250 is concave spherically formed, wherein the radius of the radius of the spherical Outer surface 11 of the second head part 10 and the thereto fastened mounting cap 30 corresponds.
  • the second pressure element 250 also has a coaxial bore for passing through with a screwing tool.
  • the locking screw 260 has a coaxial bore 262 for Intervene with a screwing tool.
  • Fig. 4 is a hexagonal hole 262 shown for an Allen key. However, it is also a different shape to intervene possible with a screw-in tool.
  • the coaxial bore 262 has such a cross-section, that a grasping with the screwing tool for which the Recess 8 of the first head part is provided allows is.
  • This embodiment has the particular advantage that the entire structure can be pre-assembled. In operation is first only the locking screw 260 is not tightened.
  • the Screw element can be in the preassembled state in the bone or vortex be screwed in by using the screwing tool through the concentric holes in the first Pressure element 20, the mounting cap 30, the second pressure element 250 and the locking screw 260 in the recess 8 of the screw member 1 is engaged. Then you can set the angular position of the plate 200 to the shaft 2 and by tightening the locking screw 260 pressure the second pressure element 250 and thus on the second head part 10 are applied to a fixing of the rest angle position achieve.
  • a bone anchoring element of the third embodiment which is shown in Fig. 5, this differs Bone anchoring element only by the second embodiment, that the second pressure element and the locking screw integrally formed in the form of a locking screw 280 are.
  • the structure of the first corresponds Screw element 1, first pressure element 20, mounting cap 30, second header 10 and plate 200 the construction of the second Embodiment, which is why the same reference numerals for these components be used and a re-description omitted.
  • the locking screw 280 has a first portion 281 on, with an external thread 281 for screwing into the Internal thread 246 of the bore 248 is provided. Adjacent to the first section 281 has the locking screw 280 the side facing the second bore 247, a second section 282.
  • the second section 282 is essentially cylindrically symmetric with an outer diameter, the is smaller than the inner diameter of the first bore 248, so that the locking screw 280 in the first bore 248th can be screwed.
  • the second head part 10 facing end face 283 of the locking screw 280 is concave spherical, wherein the radius is the radius of the spherical outer surface 11 of the second Head part 10 and the attached mounting cap 30 corresponds.
  • the rest angle position In the direction of the hole in the plate is the height of the locking screw 280 just chosen so that by tightening the End face 283 exerts such pressure on the second head part 10, that it is in the plate at one time at the time of putting it on the locking screw 280 set angular position can be fixed, hereinafter referred to as the rest angle position is.
  • the plate 200 is doing simultaneously with the Screw element 1 connected.
  • the locking screw 280 has a coaxial bore 285 which allows intervention with a screwing tool.
  • Fig. 5 is a hexagonal bore 285 for an Allen wrench shown. However, it is also a different shape to intervene with a screw-in tool possible.
  • the coaxial bore 285 has such a cross-section, that a grasping with the screwing tool for which the Recess 8 of the first head part is provided allows is.
  • This embodiment has the particular advantage that the entire structure can be pre-assembled. In operation is first only the locking screw 280 is not tightened.
  • the Screw element can be in the preassembled state in the bone or vortex be screwed in by using the screwing tool through the concentric holes in the first Pressure element 20, the mounting cap 30 and the locking screw 280 engaged in the recess 8 of the screw member 1 becomes. Subsequently, the angular position of the plate 200 adjusted to the shaft 2 and with the locking screw 280 are fixed.
  • FIG. 6 fourth embodiment of the present invention Invention differs from the first preferred Execution essentially only in the training of the first Head part and the elastic first pressure element and the same or similar elements are given the same reference numerals designated.
  • the cylindrical portion 9 extends substantially in the form of a hollow cylinder coaxial with the axis of the shaft 2 in the direction of the second pressure element 50.
  • the cylindrical Section 9 In Direction of the second pressure element 50 has the cylindrical Section 9 a region 9b with a widened outer diameter on, in the first hole 15 of the second Head part 10 is held.
  • the cylinder jacket of the cylindrical section 9 has circumferential recesses 9a such that the cylindrical Section 9 a parallel to the shaft axis extending Spiral spring forms.
  • the coil spring of the cylindrical portion 9 can by a suitable choice of spring force and preload different strong remindtreiba mechanism be realized, leading to a large variability of the bone anchoring element leads.
  • the first header 4 and the second bore 16 in the second Head part 10 need not spherical segment or hollow spherical segment be formed, but can be a different shape as long as it is ensured that the first head part 4 is pivotally held in the second head part.
  • the second header 10 and the second Headboard holding portion of the receiving part is not spherical segment or hollow spherical segment-shaped, but must also a pivoting of the second head part 10 in the Receiving part and when fixing in the desired rest angle position allow sufficient holding power.
  • Holding the mounting cap 30 in the second head part 10 can also be provided by an external thread provided on the section 32 be realized with an internal thread of the bore 15 cooperates in a region adjacent to the first end 12 area.
  • the first pressure element 20 does not necessarily have to be made of an elastomer exist, but can, for example, by accordingly arranged springs are realized, the restoring force exercise.
  • the shaft 2 and the first head part 4 are integrally formed shown, however, is also a multi-piece training possible, for example, the shaft 2 and the first headboard 4th by means of a screw, snug fit or the like are connected.
  • bone anchoring elements according to the invention in combination with a rod or with a plate can be used, as well as bone anchoring elements according to the invention with known bone anchoring elements, especially with bone screws or hooks.
  • the invention is not limited to the concrete examples limited to a polyaxial bone anchoring element. It can also other forms of the same, in particular the Receptacles and fasteners may be possible. It is crucial that the shaft elastic from a rest angle position is deflectable and that the adjustment of the rest angle position decoupled from the elastic deflectability is.

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Neurology (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
EP05004677A 2004-03-03 2005-03-03 Elément d'ancrage osseux et dispositif de stabilisation comprenant un tel élément d'ancrage osseux Active EP1570796B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US55000904P 2004-03-03 2004-03-03
DE102004010382A DE102004010382B4 (de) 2004-03-03 2004-03-03 Knochenverankerungselement zur Verankerung in einem Knochen oder in einem Wirbel und dessen Verwendung in einer Stabilisierungseinrichtung
US550009P 2004-03-03
DE102004010382 2004-03-03

Publications (2)

Publication Number Publication Date
EP1570796A1 true EP1570796A1 (fr) 2005-09-07
EP1570796B1 EP1570796B1 (fr) 2007-05-16

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EP05004677A Active EP1570796B1 (fr) 2004-03-03 2005-03-03 Elément d'ancrage osseux et dispositif de stabilisation comprenant un tel élément d'ancrage osseux

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Country Link
US (1) US7591839B2 (fr)
EP (1) EP1570796B1 (fr)
DE (2) DE102004010382B4 (fr)
ES (1) ES2286728T3 (fr)

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EP1674041A1 (fr) * 2004-12-22 2006-06-28 Ebi, L.P. Système de fixation d'os
EP1987792A1 (fr) 2007-05-03 2008-11-05 Medartis AG Dispositif de fixation, association d'un dispositif de fixation avec un élément longitudinal, dispositif doté d'une telle association tout comme kit d'ostéosynthèse
FR2920959A1 (fr) * 2007-09-17 2009-03-20 Clariance Dispositif d'ancrage vertebral.
US8828064B2 (en) 2004-04-08 2014-09-09 Ebi, Llc Bone fixation device
EP2851023A1 (fr) * 2004-12-20 2015-03-25 Roger P. Jackson Fixation d'implant médical avec vis de calage imbriquée
US10548641B2 (en) 2012-01-10 2020-02-04 Roger P. Jackson Medical implant receivers having dual lead in closure mating thread forms
US10687855B2 (en) 2012-11-21 2020-06-23 Roger P. Jackson Bone anchor receiver with extension portions having controlled splay allowance helically wound flange forms
WO2020254310A1 (fr) * 2019-06-17 2020-12-24 Aesculap Ag Vis pédiculaire bloquée en partie
US10925647B2 (en) 2000-12-08 2021-02-23 Roger P. Jackson Threaded closure with inwardly-facing tool engaging concave radiused structures and axial through-aperture
US12011193B2 (en) 2019-06-17 2024-06-18 Aesculap Ag Partially blocked pedicle screw

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US7833250B2 (en) 2004-11-10 2010-11-16 Jackson Roger P Polyaxial bone screw with helically wound capture connection
US6726689B2 (en) 2002-09-06 2004-04-27 Roger P. Jackson Helical interlocking mating guide and advancement structure
US10258382B2 (en) 2007-01-18 2019-04-16 Roger P. Jackson Rod-cord dynamic connection assemblies with slidable bone anchor attachment members along the cord
US8353932B2 (en) 2005-09-30 2013-01-15 Jackson Roger P Polyaxial bone anchor assembly with one-piece closure, pressure insert and plastic elongate member
US7862587B2 (en) 2004-02-27 2011-01-04 Jackson Roger P Dynamic stabilization assemblies, tool set and method
US10729469B2 (en) 2006-01-09 2020-08-04 Roger P. Jackson Flexible spinal stabilization assembly with spacer having off-axis core member
US8292926B2 (en) 2005-09-30 2012-10-23 Jackson Roger P Dynamic stabilization connecting member with elastic core and outer sleeve
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WO2009083659A1 (fr) * 2007-09-17 2009-07-09 Clariance Dispositif d'ancrage vertébral
FR2920959A1 (fr) * 2007-09-17 2009-03-20 Clariance Dispositif d'ancrage vertebral.
US10548641B2 (en) 2012-01-10 2020-02-04 Roger P. Jackson Medical implant receivers having dual lead in closure mating thread forms
US10898233B2 (en) 2012-01-10 2021-01-26 Roger P. Jackson Medical implant receivers having dual lead in closure mating thread forms and curvate extending instrument engaging grooves
US11129646B2 (en) 2012-01-10 2021-09-28 Roger P. Jackson Medical implant threaded plug having a start structure with symmetrically shaped concave and convex leading surfaces
US10687855B2 (en) 2012-11-21 2020-06-23 Roger P. Jackson Bone anchor receiver with extension portions having controlled splay allowance helically wound flange forms
WO2020254310A1 (fr) * 2019-06-17 2020-12-24 Aesculap Ag Vis pédiculaire bloquée en partie
JP2022529082A (ja) * 2019-06-17 2022-06-16 アエスキュラップ アーゲー 部分的に阻止された椎弓根スクリュー
US12011193B2 (en) 2019-06-17 2024-06-18 Aesculap Ag Partially blocked pedicle screw
US12053210B2 (en) 2019-06-17 2024-08-06 Aesculap Ag Partially blocked pedicle screw

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DE102004010382B4 (de) 2006-04-20
US20050216003A1 (en) 2005-09-29
US7591839B2 (en) 2009-09-22
DE502005000715D1 (de) 2007-06-28
ES2286728T3 (es) 2007-12-01
EP1570796B1 (fr) 2007-05-16
DE102004010382A1 (de) 2005-09-29

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